Massage gun



FIG. 1 is a perspective view of a massage gun showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The unevenly spaced dot-dash broken lines in the drawings depict a boundary line of the massage gun and forms no part of the claimed design. Anything within the boundary line forms no part of the claimed design. The evenly spaced broken lines in the drawings depict portions of the massage gun that form no part of the claimed design. 

CLAIM The ornamental design for a massage gun, as shown and described. 